Stove.



No. 767,038. PATENTED AUG. 9, 1904. s. 0.-BRUNBR.

STOVE.

APPLICATION FILED APR. 3, 1903.

N0 MODEL.

187i f v aoseo Whoa/(1% Patented August 9, 1904.

PATENT OFFICE.

STANTON U. BRUNER, OF KANSAS CITY, KANSAS.

sTovE.

SPECIFICATION forming part of Letters Patent No. 767,038, dated August 9, 1904.

Application filed, April 3, 1903. Serial N0. 150,929| (N model.)

To all whom it may concern-.-

Be it known that I, STANTON C. BRUNER, a citizen of the United States, residing at Kansas City, in the county of Wyandotte and State of Kansas, have invented certain new and use ful Improvements in Stoves; and I do declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, and to the figures of reference marked thereon, which form a part of this specification.

My present invention relates to stoves, and has for its object to provide a stove in which the heating-surface and capacity are greatly increased and one in which there will be a great saving of fuel.

Further objects of my invention are to provide many improved details of structure, as will be made clear from the following description.

Referring to the drawings, Figure 1 is an outside view of a stove embodying my invention. Fig. 2 is a longitudinal section of the same. Fig. 3 is a plan view of the grate structure, the upper portions of the stove being removed. Fig. 4 is a diminished detail perspective view of the air-chamber and perforated top plate, showing the same detached from the stove; and Fig. 5 is a cross-section of the stove, showing also a modification in the grate structure.

Referring more particularly to the drawings, 1 is the shell of the stove positioned on ash-pit 2, supported by legs 3.

4: is a top plate fitting over the upper end of shell 1 and having a central perforation to receive air-chamber 5, inserted therethrough and depending from peripheral flange 6, seated in peripheral seat 7 surrounding the perforation in plate 4. Chamber 5 is open only at its upper end and is made of any suitable shape-such as conical,cylin drical, or zigzagbut is preferablymade with four sides or walls slightly tapering toward bottom 8. Chamber 5 may be made of any desired length to extend down into shell 1 a distance below grate-sections 9 of the stove, as shown in Fig.

2, or to a point on the level with the upper surface of the grate-sections 9.

In Fig. 3 I have shown the grate-sections 9 rectangular in shape and arranged about a central supporting-plate 10, having a central perforation 10' therein and having parallel supporting-arms 11, two of the sections 9 being shorter than the others and arranged between said arms, being trunnioned on bars 12 13, bars 13 being provided with the usual key-face for the purpose of dumping the section. The remaining sections 9 extend full width of the stove and are trunnioned on bars 141115, bars 15 being key-faced at their outer on s.

In Fig. 5 I have shown the grate-sections 9 all of one size and segmental in shape, being arranged in a circle around a central supporting-plate 16 with radial supporting-arms 17. Segmental sections 9 are trunnioned on bars 18 19, bars 19 being key-faced. Any suitable structure of grate may be used, the above-described structuresbeing given merely as examples.

Ash-pit 2 is provided with the usual ashdoor 20 and draft-doors 21 of any number.

22 represents coal-feed doors, preferably on each side of shell 1 and of any structure.

The Walls of chamber 5, the shell 1, and the top plate 1 form a peripheral combustion-box 23, surrounding chamber 5 and connected to the usual flue 24: at the top thereof.

Doors 22 are provided with overdraft doors 25.

26 is a perforated top positioned on top of the stove.

In use fire is built in the peripheral firebox 23, coal being fed on all sides of the stove through doors 22. The combustion-draft entering ash-pit 2 ascends through grate-sections 9, through combustion-box 23, and escapes up flue 24.

The walls of the chamber 5 form heat-radiating surfaces and greatly increase the capacity of the stove for heating purposes, consequently saving fuel. There being no connection between the interior of the chamber 5 and the combustion-box 23 or the ash-plt 2 it is impossible for coal gas or smoke to escape through chamber 5 to the atmosphere in the room being heated.

I do not wish to be understood'as limiting myself to the exact details of structure herein shown and described, for the same may be varied without departing from the spirit of my invention. 7

Having thus described my invention, the following is what I claim as new therein and desire to secure by Letters Patent In a stove, the combination of an outer cas ing forming the outer wall of a combustionchambe'r, a perforated top plate secured to said casing, an ash-pit below the outer casing, a grate having a central perforation supported between the casing and the ash-pit, the

s. o. BRUNER.

Witnesses:

FREDERICK J. CHASE, HARRY A. KNIGHT. 

